Carriage-cushioning device.



PATENTED MAY 19, 1908.

M. OLF. CARRIAGE OUSHIONING DBVZGE.

APPLICATION FILED MAY 18,1907.

INVENTOH Mm W ATTORNEY WITNESSES f (%f %q/ the vehicle and whic are supplied with comframe of the vehicle. The compressed air is 'Fig.'2 a front elevation of my invention.

' MELANIE WOLF, or nwYonK, NLY.

CARRIAGE-C'UEHIONING: DEV'IGE.

Specification of Letters Patent.

, Patented May 19,1908.

Application filed May 18, 1907. Serial No. 3%,3'73.

To all whom it may concern: A

Be it known that I, MELANIE WOLF, subject of the Emperor of Austria-Hungary, and a resident of l\ew York, county and State of New York, have invented certain new and useful Improvements in Carriage-Cushioning Devices, of which the following is a specification.

The present invention pertains to cushionin'g devices for all sorts ofvehicles, articularly motor vehicles, and has for its 0 ject to provide a construction that will allow greater resiliency and thus be much more ca able of absorbing shocks, and be more dura le than the hitherto used springs.

To carry out my invention, I arrange air cushions which sup ort the underframe of pressed air, raised by a suitable a paratus' connected with the motor shaft. wing' to this construction, and because of the fact that the underframe is not in rigid connection with the axles of the vehicle, the vibrations will be greatly reduced.

My invention also consists in the arrangement, constructionv and combination of parts which will hereinafter be fully specified.

-To make my invention more clear, the same is illustrated in the accompanying drawing, in which similar reference letters denote corresponding parts and in. which Figure 1 is a-diagrammatic elevation,"and v c denotes the underframe of the vehicle, I), b the axles thereof.

a, 0 denote vertlcal air cylinders, one pair Each air cyhnder is secured ona s ring plate (1 that projects laterally from a are cen-' trally pivoted to the axle 1). Working in the cylinder 0 is a iston f, the piston rod 9 of which projects t ough the upper end of said cylinder and is connected, preferably by means of a universal joint h, wlth the undercylinders by pipes t lea ing from a com ressed air receptacle *5, arranged underneat the underframe a between. the two axles b, b. To raise com pressed air into said receptacles, I provide an air pump 7' that may be of the ordinary coni sup lied to said air sup orting said air cylinders, sprin struction, and that communicates with the com ressed air receptacle. The pum' piston is operated from a crank shaft suitably supported in brackets m, m projecting from the underframe and adapted to be driven from'the motor shaft n by means of gears 0, a. of which gear 0 is secured on the motor shaft and gear 0 is slidably borne on the crank shaft Z.

' To control the supply of air to the air cylinders, I provide t e air receptacle with a safet valve p, which at a certain pressure willisconnect the gears 0, o whereupon the air pump will be stopped. For, this purpose, the valve rod p is adapted to operate a swinging lever (1 that projects down from the underframe and engages the slidable gear 0. Aspring r acting on t f c said gear 0 tends to throw the latter into meshlng connection with ear 0;

Su den'shocks, in cases where sure sinks below or rises beyond a certain limit, can be prevented b springs 8 arranged at the bottomof each cyinder and springs t res ectively on the opposite end thereof.

a do not wish'to restrict myself to the particular construction and arrangement shown,

but

What I claim and desire to secure by Letters' Patent is: i

1. In a motor vehicle, the combination with a motor, of a cushioning device com 118-- ing compressed air cylinders, spring p ates the axles of the vehicle and actuate pistons working in said air cy inders, anduniv'ersal joints connecting the iston secured to,

rods with the underframe of the vehicle, a

compressed air receptacle communicating with the said air 0 linders, an air pump supplying c'ompresse air to said receptacle, a crank shaft to be operated from the motor and driving the air pump, and means to at a certain pressure automatically disconnect the the air pres-' air ump from the-motor, substantially as set fort I 2. In a motor vehicle, the combination with a motor, of a cushioning device comprisin compressed air cylinders supported on the axles of the vehicle, spring actuated pistons working therein and connected with the underframe of the vehicle, a compressed air receptacle communicating with said cylinders, an air pumpsupplying compressed air to said receptacle, a crank shaft supported from the -1 1nderframe of the vehicle, gears transmitting movement from themotor to the said crank shaft, a safety valve on the compressed air receptacle adapted at acertain ssmsss pressure to disconnect the crank shaft from the motor, substantially as set forth.

Signed at New York this 17 day of May MELANIE WOLF. Witnesses DAVID WOLF, Josnrn E. CAVANAUGH. 

